Acetylene-gas bicycle-lamp.



' Patented Doc. 25, I900.

W. A.. PENFIELD.

AGETYLENE GAS BICYCLE LAMP.

(Application filed :0. 11, 1699.

j (No Model.)

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UNTTED STATES PATENT ()FEICE.

WILLIAM A. PENFIELD, OF MERIDENJCONNECTIGUT, ASSIGNOR TO THE BRADLEY & HUBBARD MFG. 00., OF SAME PLACE.

ACETYLENE-GAS BICYCLE-LAM P.

SPECIFICATION formingpart of Letters Patent No. 664,775, dated December 25, 1900.

Application filed December 11, 1899. Serial N0.739,861. iNo model.)

To all whom it may concern:

Be it known that I, WILLI AM A. PENFIELD, of Meriden, in the county of New Haven and State of Connecticut, have invented a newImprovement in Acetylene-Gas Bicycle-Lamps;

and I do hereby declare the following, when taken in connection with the accompanying drawings and the letters of reference marked thereon, to be a full, clear, and exact description of the same, and which said drawings constitute part of this specification, and

represent, in-

Figure 1, a view in vertical central section of an acetylene-gas bicycle-lamp constructed in accordance with my invention; Fig. 2, a plan view of the water-tank,showing the filler in its closed position; Fig. 3, a corresponding View showing the filler in its open position; Fig. 4, a perspective view of the top of the tank with its adjuncts removed; Fig. 5, an enlarged sectional view of the waterfeeding plug; Fig. 6, a detached view thereof, in side elevation, looking toward one end of its double-ended water-discharge passage.

My invention relates to an improvement in acetylene-gas bicycle-lamps, the object being to provide therefor simple, convenient, and reliable devices for filling the water-tank and for feeding the water therefrom into the carbid-receptacle.

With these endsin View my invention consists in certain details of construction and combinations of parts, as will be hereinafter described, and pointed out in the claims.

In carrying out my invention as herein shown I provide the water-tank A with a circular filler-opening A, formed in its integral top A in which a hub B is centrally located, the said hub being formed atitslower end with a flange B and at its upper end with a flange B. The filler -opening A is closed by an elastic filler cap 0, consisting of a disk of rubber or other equivalent material secured to a button D, smaller in diameter than the cap and also smaller in diameter than the opening A, and provided upon its lower face with a heavy rivet (I, by means of which the cap is held in place, and upon its upper face with a small rivet d, by means of which the button is secured to a horizontally swinging and vertically tilting arm E, swiveled upon the hub Bbefore mentioned. This arm is provided at its outer end with a fingerpiece E and at its opposite end with an integral spring E, which rides upon a long segmental tension-cam F, located upon the integral top A of the tank. T0 expose the filler-opening A for filling the tank A, the arm E is engaged through its finger-piece E and pushed to one side, so as to slide the cap 0 away from the opening. At this time the spring E rides down the cam F. On the other hand, to close the opening the arm is engaged through its finger-piece E and swung in the opposite direction until the cap has been registered with the opening. At this time the spring E rides up the cam F and operates to tilt or rock the arm so as to cause the elastic cap 0 to be forced partially into the opening under the action of the button D. By these means I am enabled to open and close the filler-opening very rapidly and very much more conveniently than by the use of a screw threaded filler cap, which is very liable to get lost, particularly in the jarring to which an acetylene-gas bicycle-lamp is exposed in use.

The hub B affords a bearing for the stem G, which is provided at its lower end with a tapering valve H and at its upper end with an operating-button 1, formed with a head I, between which and the flange B of the hub B a spring J is interposed, this spring exerting a constant effort to lift the stem G. The valve H is entered into a water-feeding plug K, mounted in the center of a diaphragm L, which separates the water-tank from the gasgenerating chamber M of the lamp, the said tank and chamber being formed integral with each other. The said plug K is formed with a tapered opening K, which receives the valve H and which merges into a small straight opening K which in turn intersects a transversely arranged double ended dischargeopening K from which the water which is fed through the plug is laterally discharged in both directions, the opposite sides of the plug being cut away, as at K K, to facilitate this discharge. The said plug consists of a solid piece'of metal in which the tapered opening K, the opening K and the discharge-opening K are formed. The extreme lower end K of the plug forms under this construction a guard to prevent its discharge-openings from being fouled and stopped-as, for instance, by the lifting of the cloth or gauze which is generally placed over the carbid which is located in a carbid receptacle N, which is inserted into the gas generating chamber, through the open lower end thereof, and secured in place by a cap N,which forms the lower end of the said receptacle. The gas generated passes directly into a suitable burner 0, located Within the center of a reflector P of any approved construction.

I would have it understood that in carrying out my invention I do not limit myself to the exact details of construction herein shown and described, but hold myself at liberty to make such variations therefrom as fairly fall Within the spirit and scope of my invention.

Having fully described my invention, What I claim as new, and desire to secure by Letters Patent, is

cap and swiveled centrally above the top of the said tank, a spring carried by and coacting with the said arm to hold it in its closed position, and a cam located upon the top of the tank and coacting with the spring to place the same under tension.

2. In an acetylene-gas bicycle-lamp, the combination with a Water-tank formed in its top with a filler opening, of a hub mounted in the center of the top of the said tank, an arm having swinging and rocking or tilting movement upon the said hub, and provided at one end with a spring and at the other end with a finger-piece, a button secured to the said arm near its finger-piece, an elastic filler cap secured to the said button and larger in diameter than the same, and a cam mounted upon the top of the said tank for coaction with the said spring.

in testimony whereof I have signed this specification in the presence of two subscribing witnesses.

WILLIAM A. PENFIELD. Witnesses:

W. R. BOOTH, J. D. ROBERTS, Jr. 

